Business Address: AnytimeMailBox
I had a bad experience with paying a lot for a service that failed to forward mail until I found this. Get a business address with optional mail forwarding for an amazing price.

Business Collateral Printing: Moo
They are not the cheapest, but design-focused.

Insurance: Hiscox
Best small business insurance., including online service for requesting certificates etc.

Travel / Lifestyle

Anti-Theft/Loss: Tile App
Are you traveling around with expensive stuff? Tiles work for computers, bikes, cameras, keys, luggage, or anything that is easily lost or stolen.